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Old 20-08-2014, 08:10 PM   #1
mcfly94
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Default AU V8 and I6 Trans Differences

Hey guys hoping there may some be some trans tech gurus on here.
Going to convert my au forte to an 8 soon and want to stay auto.
I dont really want to have to go buy a second hand trans, as i wont really know its condition and will probably need rebuilding which is going to be very costly!
What i do know is my trans is real good condition, been serviced, shifts well and has 168k on it.
Plan is to run about 3k stall, and have already got a massive trans cooler for it.
Whats the internal differences? if there is, any way i could i have my trans modded to handle a v8?
dont really know how the btr's work! as far as i know the valve body aint nothing like the old c4/c10 and cant have a shift kit put through to increase line pressure and handle that bit extra!

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Old 21-08-2014, 08:59 AM   #2
BLU-220
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Default Re: AU V8 and I6 Trans Differences

i think they are different, as when i was in the hunt for a new auto for my AU V8 ghia everyone i spoke to said they are different i even said just change the bellhousing and the output shaft but still different
as there was plenty of 6 cyl auto around


cheers Dean
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Old 21-08-2014, 11:18 AM   #3
auIILTD
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Default Re: AU V8 and I6 Trans Differences

Different models too. 93LE and 97LE. Not sure of all the differences though, but I am sure that is researchable.

Edit: Just looked in the WS Manual - no obvious listing as to the differences - just one is for 6cyl and the oter is for 8cyl.
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5.6L 342ci T3 Short, AFR165 heads, Comp XE270HR-12 Cam, Brembo 4/4s(355/330), T3 5 spokes, LC-1 wideband, Whiteline HD swaybars, TCE 3K Hi Stall, PWR Auto Trans Cooler, Koni shocks, King Low Springs, Hurricane headers, 100 cpsi cats, Twin 2.5" exhaust.

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Last edited by auIILTD; 21-08-2014 at 11:23 AM. Reason: Add info
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Old 21-08-2014, 12:15 PM   #4
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Default Re: AU V8 and I6 Trans Differences

just dropped my car off to get the auto fitted, and i asked about the difference between v8 & i6 boxes, he said their same internally but the hi stall torque converter is the only difference between V8 & the i6

cheers Dean
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Old 21-08-2014, 11:58 PM   #5
mik
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Default Re: AU V8 and I6 Trans Differences

higher stall speed in the v8 by 200 rpm i think, no idea about other variations.
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Old 22-08-2014, 12:06 AM   #6
mcfly94
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Default Re: AU V8 and I6 Trans Differences

awesome thanks guys, think i might go speak to a few trans guys myself and post back with my findings!
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